Wijegunawardana, N. D. A. D.; Gunawardhana, S. S.; Gunawardhana, K. P. S.; Gunawardhana, S. S.; Ratnayake, H.
(Faculty of Technology Rajarata University of Sri Lanka, 2021-12)
With the onset of the COVID-19 pandemic, the use of medicinal plants for their immune-enhancing
properties is becoming popular in human society. They can be used as safe and inexpensive alternatives for
pharmaceuticals ...